When Is National Flag Day?


National Flag Day is on the 14th of June with 15,723 tweets.

More on Flag Day below.



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About Flag Day

Is It Flag Day Today?

It's Flag day on the 14th of June.

Flag Day' is by our calculation on: June the 14th. The first time we detected Flag Day was the 23rd of April 2015 and the most recent detection of references to Flag Day was 6 days, 2 hours ago.

We're now tracking the sentiment around every mention of Flag day to show how people feel about Flag. See if people like Flag here.
We're detecting how Flag affects other things more widely than just being a celebrated day. See how Flag affects company share prices.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 14th of June. In total we detected 82 total unique days being shared such as Flag Day which had 2,053 people talking about it, or Bourbon Day having 1,350 tweets. A random sample of which are shown below.


National days on the 14th of June

National Flag Day, on the 14th of June

How Is The Date For Flag Day Calculated?

The day shown for 'National Flag Day' is based off how much chitter-chatter and buzz there was on June 14, 2017 across social media making references to 'Flag Day'. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day, including others such as: Softball, Strawberry Shortcake or Gun Violence Awareness Day. This crowdsourcing of data method to assess the National Flag Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!


I'd Like To Promote National Flag Day

We've put together the following resources full of nifty tips on how to increase the reach of Flag Day. The resources include: graphs, badges, and resources on what steps to take to boost Flag Day's visibility.

Get The Badge

National Flag Day

It's Flag Day
On June 14th

Can I Register Flag Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Flag day". We only aim to programatically reflect what 'National Day' it is based of what The Internet Says It Is. We believe this is much more fun as it reflects the nature of how the most amusing / interesting national days are often created organically and grow based off popular social trends and sharing, as such we don't add new days to our database unless they are organically observed on social media.


Is it National Flag Day Everywhere?

Yes? No.. Sort of | Maybe ¯\_(ツ)_/¯

What's really intersting is how whilst some National Days like National Daughters Day are seemingly celebrated internationally irrespective of geography, some very popular days (That often become the No. 1 National Day on our homepage) are in fact locally very specific and are offical holidays celebrated on a Country's national calendar. Take National Rambutan Day for instance, Rambutan is a popular Souteast Asian fruit and not seen so much in the UK, Europe or the USA. Some regionally specific trends subsequently become immensely popular internationally and worldwide, partly fuelled by widely shared 'National Days', National Pabebe Wave Day being one such example.

teenagers sharing national days on social media

Hang On, It Was National Flag Day Already This Year..!?

Yes, this is strangely enough entirely possible. The date shown for National Flag Day can change, if for instance several hundred people tweeted about Flag Day in early April, then in May a few thousand people tweeted about Flag day, then the date shown for National Flag Day, could come up twice :D

We have also detected mentions of Flag day on;



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For people who wish to promote National Flag Day, we've put together the following resources.
See also: How does Flag affect the share price of Apple, Facebook, Microsoft?
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